Ok, lets put this into perspective.
we live on a dynamic planet, right???? mostly made of water....correct?
what happens when you have water and rocks, dirt spinning at a high speed 24/7.
of course things are going to move. this movement could also be called earth quakes. the tectonic plates are always moving....they have been since the beginning of time and will always move.
so yes, don't thing to much about it. there has always been earth quakes and will always be earth quakes...big and small. just worry about living a good life and keep it in perspective.